I have a similar experience, but while I can get used to the blurriness, and after a while I don't notice it as much, going back is always a breath of fresh air. I imagine it like putting your glassses on - if I had to wear any - everything just aligns right. In fairness this happens on Windows as well if I have ClearType turned on, but not quite as much. Mind you the MBP has a higher dpi than my desktop monitor, and the bkurriness is still noticeable. On a different laptop that has Linux running, slightly higher dpi looks good; same with my Android phone.

No matter how long I use font aliasing, without some very high dpi my eyes just cannot adjust, cannot totally ignore the bluriness. Seems like I'm in the minority though.